385447 has 8 divisors (see below), whose sum is σ = 403200. Its totient is φ = 368184.

The previous prime is 385433. The next prime is 385471. The reversal of 385447 is 744583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 385447 - 2¹¹ = 383399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2704 + ... + 2842.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2³⁸⁵⁴⁴⁷ is an apocalyptic number.

385447 is a deficient number, since it is larger than the sum of its proper divisors (17753).

385447 is a wasteful number, since it uses less digits than its factorization.

385447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245.

The product of its digits is 13440, while the sum is 31.

The square root of 385447 is about 620.8437806727. The cubic root of 385447 is about 72.7760069668.

The spelling of 385447 in words is "three hundred eighty-five thousand, four hundred forty-seven".